net: xgbe: remove extraneous #ifdef checks

When both ACPI and OF are disabled, xgbe_v1 is unused and
causes a W=1 warning:

drivers/net/ethernet/amd/xgbe/xgbe-platform.c:533:39: error: unused variable 'xgbe_v1' [-Werror,-Wunused-const-variable]
static const struct xgbe_version_data xgbe_v1 = {

There is no real point in trying to save a few bytes for the match
tables, so just make them always visible.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240403080702.3509288-29-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>